i2c: sh_mobile: use direct writes when accessing ICE bit
authorWolfram Sang <wsa+renesas@sang-engineering.com>
Thu, 2 Nov 2017 12:47:30 +0000 (13:47 +0100)
committerWolfram Sang <wsa@the-dreams.de>
Mon, 27 Nov 2017 17:53:07 +0000 (18:53 +0100)
ICE bit is for resetting the module. Other bits don't matter then, so we
don't need to use the iic_set_clr() function but can use iic_wr().

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
drivers/i2c/busses/i2c-sh_mobile.c

index 02c2912bebb4fe6512a124f59174bc3cf737a118..72c9483db769a52b37a90f75fbb997bcf8ddcb89 100644 (file)
@@ -620,10 +620,10 @@ static int start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg,
 
        if (do_init) {
                /* Initialize channel registers */
-               iic_set_clr(pd, ICCR, 0, ICCR_ICE);
+               iic_wr(pd, ICCR, 0);
 
                /* Enable channel and configure rx ack */
-               iic_set_clr(pd, ICCR, ICCR_ICE, 0);
+               iic_wr(pd, ICCR, ICCR_ICE);
 
                /* Set the clock */
                iic_wr(pd, ICCL, pd->iccl & 0xff);
@@ -740,7 +740,7 @@ static int sh_mobile_i2c_xfer(struct i2c_adapter *adapter,
        }
 
        /* Disable channel */
-       iic_set_clr(pd, ICCR, 0, ICCR_ICE);
+       iic_wr(pd, ICCR, 0);
 
        /* Disable clock and mark device as idle */
        clk_disable_unprepare(pd->clk);